/*
 * Copyright Camunda Services GmbH and/or licensed to Camunda Services GmbH
 * under one or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information regarding copyright
 * ownership. Camunda licenses this file to you under the Apache License,
 * Version 2.0; you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

'use strict';

var angular = require('../../../../../camunda-commons-ui/vendor/angular');
var debouncePromiseFactory = require('camunda-bpm-sdk-js').utils
  .debouncePromiseFactory;
var debouncePromise = debouncePromiseFactory();

module.exports = [
  'camAPI',
  'createListQueryFunction',
  function(camAPI, createListQueryFunction) {
    var externalTasks = camAPI.resource('external-task');
    var getExternalTasks = createListQueryFunction(
      externalTasks.count.bind(externalTasks),
      externalTasks.list.bind(externalTasks)
    );

    return {
      getActiveExternalTasksForProcess: getActiveExternalTasksForProcess
    };

    function getActiveExternalTasksForProcess(
      processId,
      pages,
      sorting,
      otherParams
    ) {
      var countParams = {processInstanceId: processId};
      var sortParams = {sorting: [sorting]};
      return debouncePromise(
        getExternalTasks(
          angular.extend(countParams, otherParams),
          pages,
          sortParams
        )
      );
    }
  }
];
